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zipcodes.pro — ZIP/02638

02638

ZIP 02638 is Dennis, Massachusetts, in Barnstable County; area codes 508 and 774; Eastern time.

Type
Standard
Time zone
America/New_York
County
Barnstable
Metro area
Barnstable Town, MA
Population
3,253
Coordinates
41.7302, -70.1974
☼ Live from 02638 — Dennis, MA

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Where 02638 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 02638
  • 🔢 Type 02638 into a pocket calculator and turn it upside down: BEgZO — not quite a word, sorry.
  • ➕ As a number, 2,638 = 2 × 1319. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101001001110
  • 🏠 Its numerical neighbours: 02637 (Cummaquid, MA, 4 mi away) and 02639 (Dennis Port, MA, 5 mi away).
  • 🔄 Backwards, 02638 becomes 83620, which is not a ZIP code at all.
  • 👥 57 other ZIP codes are made of exactly the same digits (02368, 02836, 02863, 03268, 03826, 03862, …). The farthest-flung twin is 86302 in Prescott, AZ, 2,326 miles away.
  • 🧭 Farther north than 73% of all ZIP codes, and farther east than 97%.
  • 🎯1,484 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 02638 and you would come out at 41.73°S, 109.80°E — 754 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 09m.
  • 📏 At 5.6 square miles of land, 02638 is bigger than 20% of ZIP codes — room for about 4.3 Central Parks.
🌙 The sky over 02638 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,253This ZIP3,253
Households1,440This ZIP1,440
Housing units2,932This ZIP2,932
Median age60.5This ZIP60.5Massachusetts40.0US 38.9
Median household income$108,726This ZIP$108,726Massachusetts$103,960US $80,734
Median home value$827,900This ZIP$827,900Massachusetts$562,100US $332,700
Median gross rent$1,208This ZIP$1,208Massachusetts$1,762US $1,413
Bachelor's degree or higher45.9%This ZIP45.9%
Mean commute21.5 minThis ZIP21.5 min
Population density577.2 / sq miThis ZIP577.2 / sq mi

Business and tax activity

Business establishments91This ZIP91
Employees437This ZIP437
Annual payroll$27,632,000This ZIP$27,632,000
Tax returns filed1,830This ZIP1,830
Total adjusted gross income$206,071,000This ZIP$206,071,000

Land area

Land area5.64 sq miThis ZIP5.64 sq mi
Water area0.24 sq miThis ZIP0.24 sq mi

Other place names in 02638

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 02638

ZIPCityDistance
02675 Yarmouth Port, MA 2.5 mi
02660 South Dennis, MA 2.6 mi
02641 East Dennis, MA 2.7 mi
02664 South Yarmouth, MA 3.8 mi
02637 Cummaquid, MA 4.2 mi
02670 West Dennis, MA 5.0 mi
02639 Dennis Port, MA 5.3 mi
02673 West Yarmouth, MA 5.9 mi
02671 West Harwich, MA 6.1 mi
02630 Barnstable, MA 6.2 mi

Find every ZIP code within 10 miles of 02638 →

Questions about this ZIP code

Where is ZIP code 02638?

02638 is in Dennis, Massachusetts, in Barnstable County, part of the Barnstable Town, MA metropolitan area. Its published point location is 41.7302, -70.1974.

What county is 02638 in?

02638 lies in Barnstable County.

What area code is 02638?

Dennis uses area codes 508 and 774, from NANPA's telephone records.

What time zone is 02638 in?

02638 uses America/New_York.

How many people live in 02638?

About 3,253 people live in ZIP code 02638, in 1,440 households, at 577.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 02638?

$108,726 a year, against $103,960 across Massachusetts.

What ZIP codes are near 02638?

The closest are 02675 (2.5 mi), 02660 (2.6 mi), 02641 (2.7 mi), 02664 (3.8 mi) and 02637 (4.2 mi).

Is 02638 a PO Box ZIP code?

02638 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “02638 ZIP Code — Dennis, Massachusetts (Barnstable County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/02638

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